ECOLAB INC.

ST. PAUL, Minn.--(BUSINESS WIRE)-- Ecolab will host a live webcast to discuss its third quarter 2026 results. A news release containing third quarter results is expected to be issued before market open on October 27, 2026. Details for the public webcast are as follows: TIME: 1:00 p.m. Eastern Time DATE: Tuesday, October 27, 2026 DURATION: One hour LOCATION: www.ecolab.com/investor ARCHIVE: A replay of the webcast and supplemental data will be available on Ecolab’s website. About Ecolab A trusted partner for millions of customers, Ecolab (NYSE:ECL) is a global leader in water, hygiene and infection prevention solutions and services that protect people and the resources vital to life. For more than a century, Ecolab has advanced innovation by integrating science-based solutions, data-driven insights, AI technology and world-class service. This unique combination enables Ecolab to partner with customers to define what best-in-class looks like and scale it across their operations, helping them achieve peak performance. Today, Ecolab delivers $16 billion in annual sales, employs 48,000 associates and serves customers in more than 170 countries and 40 industries. The company helps protect one-third of the world’s food production and a quarter of the power generated while delivering innovative solutions across food, hospitality, healthcare, data centers, microelectronics and life sciences. As the world’s water company, Ecolab plays an important role in AI growth by supporting the full water needs of advanced computing—from ultra‑pure water for chip manufacturing, to water solutions that support the power behind AI, to direct liquid cooling systems for high‑density computing that improves performance while reducing environmental impact through circular water use. In life sciences, Ecolab delivers end to end solutions that support the development and manufacturing of l

ST. PAUL, Minn.--(BUSINESS WIRE)-- Ecolab Inc. will host its 2026 Investor Day in conjunction with the SC26 Supercomputing Conference on Tuesday, November 17, 2026, in Chicago. Christophe Beck, chairman, president and chief executive officer; Scott Kirkland, chief financial officer; and other members of Ecolab’s senior leadership team will provide an in-depth look at the technology, innovation and growth strategies that are strengthening the company’s business model, market position and long-term growth algorithm. The event will highlight Ecolab’s technology investments, the rapid growth of its Global High-Tech business and the company’s expanding role in the AI infrastructure market by enabling more computing power with less water and less energy. Management will also discuss how Ecolab’s growth engines are accelerating Ecolab’s shift toward higher-growth, higher-margin markets. The program will include formal presentations, a Q&amp;A session and a guided tour of Ecolab's Global High-Tech exhibition booth at the SC26 Supercomputing Conference. Ecolab’s booth will showcase its newly integrated, end-to-end cooling platform, which combines CoolIT’s liquid cooling technologies with Ecolab’s 3D TRASAR digital capabilities. The platform is designed to help data center operators optimize water use, energy efficiency and computing performance as demand for advanced computing continues to scale. To register to attend the event in person, please contact Ecolab’s Investor Relations department. Space will be limited. A live webcast of the presentation will be available via the investor section of our website at www.ecolab.com/investor. A replay of the webcast will be available following the event. About Ecolab A trusted partner for millions of customers, Ecolab (NYSE:ECL) is a global leader in water, hygiene and infection prevention solutions and services that protect people and the resources vital to life. For more than a century, Ecolab has advanced innovation by integrating science-based solutions, data-driven insights, AI technology and world-class service. This unique combination enables Ecolab to partner with customers to define what best-in-class looks like and scale it across their operations, helping them achieve peak performance. Today, Ecolab delivers $16 billion in annual sales, employs 48,000 associates and serves customers in more than 170 countries and 40 industries. The company helps protect one-third of the world’s food production and a quarter of the power generated while delivering innovative solutions across food, hospitality, healthcare, data centers, microelectronics and life sciences. As the world’s water company, Ecolab plays an important role in AI growth by supporting the full water needs of advanced computing—from ultra‑pure water for chip manufacturing, to water solutions that support the power behind AI, to direct liquid cooling systems for high‑density computing that improve performance while reducing environmental impact through circular water use. In life sciences, Ecolab delivers end-to-end solutions that support the development and manufacturing of life-saving drugs, helping customers operate safely and consistently at scale while improving performance and reducing environmental impact. Through its comprehensive approach, Ecolab protects what’s vital, with a goal by 2030 to help protect 2 billion people from infections and conserve enough drinking water for 1 billion people, while continuing to enhance business performance. <p

ST. PAUL, Minn.--(BUSINESS WIRE)-- The board of directors of Ecolab Inc. today declared a regular quarterly cash dividend of $0.73 per common share, to be paid October 15, 2026, to shareholders of record at the close of business on September 15, 2026. Ecolab has paid cash dividends on its common stock for 89 consecutive years. About Ecolab A trusted partner for millions of customers, Ecolab (NYSE:ECL) is a global leader in water, hygiene and infection prevention solutions and services that protect people and the resources vital to life. For more than a century, Ecolab has advanced innovation by integrating science-based solutions, data-driven insights, AI technology and world-class service. This unique combination enables Ecolab to partner with customers to define what best-in-class looks like and scale it across their operations, helping them achieve peak performance. Today, Ecolab delivers $16 billion in annual sales, employs 48,000 associates and serves customers in more than 170 countries and 40 industries. The company helps protect one-third of the world’s food production and a quarter of the power generated while delivering innovative solutions across food, hospitality, healthcare, data centers, microelectronics and life sciences. As the world’s water company, Ecolab plays an important role in AI growth by supporting the full water needs of advanced computing—from ultra‑pure water for chip manufacturing, to water solutions that support the power behind AI, to direct liquid cooling systems for high‑density computing that improves performance while reducing environmental impact through circular water use. In life sciences, Ecolab delivers end to end solutions that support the development and manufacturing of life-saving drugs, helping customers operate safely and consistently at scale while improving performance and reducing environmental impact. Through its comprehensive approach, Ecolab protects what’s vital, with a goal by 2030 to help protect 2 billion people from infections and conserve enough drinking water for 1 billion people, while continuing to enhance business performance. Ecolab. Protecting What’s Vital. www.ecolab.com (ECL-D) Investor Contact: Andrew C. Hedberg 651.250.2185 Ecolab Media Relations 651.250.4724 MediaRelations@Ecolab.com Source: Ecolab Inc.

  ST. PAUL, Minn.--(BUSINESS WIRE)-- Ecolab Inc. (NYSE: ECL):SECOND QUARTER HIGHLIGHTSEcolab delivered strong performance across the business. Accelerated organic sales growth, driven by good volume growth despite Middle East disruptions and by improved pricing, as well as strong productivity, more than offset rising commodity costs.Reported sales $4.4 billion, +10%. Organic sales growth accelerated to +5%. Growth in Ecolab's core businesses improved, led by accelerating growth in Food & Beverage, Institutional, and Light Water. Ecolab's growth engines continued to grow strong double-digits, led by accelerating growth in Global High-Tech and Life Sciences.Reported operating income margin 17.2%. Organic operating income margin 18.8%, +40 bps. Reported gross margin 44.1%. As expected, adjusted gross margin declined 60 bps due to the impact of the Ovivo Electronics acquisition; excluding this impact, organic gross margin was stable as strong pricing offset rising commodity costs.Reported diluted EPS $1.90, +3%. Adjusted diluted EPS $2.09, +11%.RAISES 2026 OUTLOOK2026: Expect adjusted diluted EPS in the $8.05 to $8.25 range, +7% to 10%, higher than prior expectations of $8.03 to $8.23.3Q 2026: Expect adjusted diluted EPS in the $2.13 to $2.23 range, +3% to 8%.These ranges reflect strong underlying performance and a short-term impact from non-cash amortization and financing costs of the CoolIT acquisition.Second Quarter Ended June 30ReportedAdjusted(unaudited)Public Currency Rates%Public Currency Rates%(millions, except per share)2026<p class="b

ST. PAUL, Minn.--(BUSINESS WIRE)-- Ecolab today announced the close of its acquisition of CoolIT Systems, a leader in direct liquid cooling for high‑density data centers. The transaction closed earlier than expected, and Ecolab welcomes the world-class CoolIT team to the company. Ecolab acquired CoolIT for approximately $4.75 billion. CoolIT’s year‑to‑date sales have grown more than 100%, driven by accelerating demand for liquid cooling in AI data centers. With CoolIT, Ecolab extends its established global leadership in water technologies, research and service to the fastest-growing market in the world: AI infrastructure and computing. At the heart of AI is water. We need water to produce chips, power chips, and cool chips. Ecolab is now uniquely positioned to offer end-to-end solutions across the full AI value chain, from ultra-pure water to produce the most advanced chips, to high-performing water systems for optimized power generation, to direct liquid cooling for the most powerful AI data centers. This enables Ecolab to help customers scale AI faster with global solutions that protect people, natural resources, and communities. At Supercomputing in November 2026 in Chicago, Ecolab plans to introduce a breakthrough innovation: a new end-to-end 3D TRASAR™ cooling platform combining CoolIT technologies, including cooling distribution units and high-performing cold plates, with integrated 3D TRASAR™ digital optimization and advanced cooling fluids. Supported by global expertise, it will optimize water, power, and compute performance at scale. This will provide operators with real‑time visibility into system performance to help reduce cooling power demand and increase power efficiency, while leveraging closed-loop solutions to move data centers toward a near-zero water footprint. This technology is applicable for AI architectures like NVIDIA Vera Rubin, Grace Blackwell, and more to help enhance uptime while accelerating the shift to an AI infrastructure with less impact on the environment and natural resources. “NVIDIA has collaborated with Ecolab and CoolIT across a broad range of liquid‑cooling initiatives, including coolant qualification, coolant health monitoring, cooling infrastructure development, and next‑generation AI factory technologies,” said Ali Heydari, technical director and distinguished engineer at NVIDIA, and Saket Karajgikar, senior engineering manager and ASME fellow at NVIDIA. “Through collaborations spanning NVIDIA engineering labs, research programs, and large‑scale AI infrastructure deployments, Ecolab and CoolIT have consistently demonstrated strong technical expertise, innovation, and responsiveness.” Ecolab and CoolIT will continue to work with leading hyperscale customers and bring together stakeholders across the power and water ecosystem to support the design of next-generation AI data centers that accelerate AI deployment while maximizing performance and minimizing impact. Ecolab’s Global High-Tech business, which generated approximately $150 million in annual sales in 2021, is now approaching $1.5 billion in 2026 annualized sales following the additions of Ovivo and CoolIT. Ecolab is targeting its Global High-Tech business to be $4 billion in annual sales by 2030, with operating income margins of 25%. The business is now Ecolab’s largest growth engine, and as it grows by more than 25% annually, it is expected to contribute more than 2 percentage points to annual sales growth with expanding margins. “With Ecolab’s breakthrough solutions across fabs, power and data centers, AI can now scale more rapidly while respecting communities, the environment and natural resources,” said Christophe Beck, chairman, president and chief executive officer of Ecolab. “With strong and consistent core businesses and new growth engines in high tech and

ST. PAUL, Minn.--(BUSINESS WIRE)-- Ecolab will host a live webcast to discuss its second quarter 2026 results. A news release containing second quarter results is expected to be issued before market open on July 28, 2026. Details for the public webcast are as follows: TIME: 1:00 p.m. Eastern Time DATE: Tuesday, July 28, 2026 DURATION: One hour LOCATION: www.ecolab.com/investor ARCHIVE: A replay of the webcast and supplemental data will be available on Ecolab’s website. About Ecolab A trusted partner for millions of customers, Ecolab (NYSE:ECL) is a global leader in water, hygiene and infection prevention solutions and services that protect people and the resources vital to life. For more than a century, Ecolab has advanced innovation by integrating science-based solutions, data-driven insights, AI technology and world-class service. This unique combination enables Ecolab to partner with customers to define what best-in-class looks like and scale it across their operations, helping them achieve peak performance. Today, Ecolab delivers $16 billion in annual sales, employs 48,000 associates and serves customers in more than 170 countries and 40 industries. The company helps protect one-third of the world’s food production and a quarter of the power generated while delivering innovative solutions across food, hospitality, healthcare, data centers, microelectronics and life sciences. As the world’s water company, Ecolab plays an important role in AI growth by supporting the full water needs of advanced computing—from ultra‑pure water for chip manufacturing, to water solutions

ST. PAUL, Minn.--(BUSINESS WIRE)-- Scott Kirkland, CFO, will address financial analysts at the William Blair Annual Growth Stock Conference on Tuesday June 2, 2026. Ecolab will offer a webcast of Mr. Kirkland’s presentation. Details for the webcast are as follows: TIME: 10:00am CT DATE: June 2, 2026 DURATION: Approximately 30 minutes LOCATION: www.ecolab.com/investor ARCHIVE: A replay of the webcast will be available through September 2, 2026. To access the webcast, visit the Events & Presentations section of Ecolab’s Investor website at www.ecolab.com/investor and click on the webcast details. About Ecolab A trusted partner for millions of customers, Ecolab (NYSE:ECL) is a global leader in water, hygiene and infection prevention solutions and services that protect people and the resources vital to life. For more than a century, Ecolab has advanced innovation by integrating science-based solutions, data driven insights, AI technology and world-class service. This unique combination enables Ecolab to partner with customers to define what best-in-class looks like and scale it across their operations, helping them achieve peak performance. Today, Ecolab delivers $16 billion in annual sales, employs 48,000 associates and serves customers in more than 170 countries and 40 industries. The company helps protect one-third of the world’s food production and a quarter of the power generated while delivering innovative solutions across food, hospitality, healthcare, data centers, microelectronics and life sciences. As the world’s water company, Ecolab plays an important role in AI growth by supporting the full water needs of advanced computing—from ultra pure water for chip manufacturing, to wa

2025 Growth & Impact Report shows how Ecolab is built for growth in the AI era ST. PAUL, Minn.--(BUSINESS WIRE)-- The world is entering a period of historic growth, complexity and opportunity. As artificial intelligence reshapes industries and demand for energy, food and water accelerates, how companies grow next will matter as much as how fast they grow.In a rapidly changing world, Ecolab remains constant. Today, the company released its 2025 Growth & Impact Report highlighting how Ecolab continues to deliver strong business performance while deepening its impact on customers and communities in the areas that matter most.Technologies like AI promise extraordinary progress, but they cannot scale without mastering water.“Water is the foundation of life and business. We cannot create more water, but we can reimagine how we use it,” said Christophe Beck, Chairman, President and CEO, Ecolab. “Companies that act decisively, apply proven solutions and work in partnership will lead the next era of growth.”In 2025, Ecolab partnered with customers across more than 40 industries and 170 countries to deliver performance and growth while protecting vital resources around the world. Together, Ecolab helped customers:Conserve the annual drinking water needs of more than849 million people, equivalent to 245 billion gallons of waterSafeguard 7.7 million people from pollution-induced illnesses by avoiding 4.7 million metric tons of greenhouse gas emissionsProtect 1.7 billion people from foodborne illnesses and infectionsRealize $12.9 billion in cumulative valuei using Ecolab solutions and servicesThat performance translated into real-world results, reinforcing how performance and impact fuel each other. While Ecolab’s greatest impact is delivered through its customers, the company applies the same discipline across its operations and communities:High-performing teams: Delivered record sales, earnings per share, operating income margin and cash flows, fueled by a culture of safety, inclusion and performance.World-class operations: Reduced Scope 1 and 2 emissions by 44% from a 2018 base year, powered 92% of operations with renewable electricity and improved water use efficiency by 36%.Global water leadership: Advanced basin-level action as a co-founder of the United Nations Water Resilience Coalition, expanded Alliance for Water Stewardship certification to 16 Ecolab facilities and partnered with Water.org to expand global access to safe water and sanitation.Breakthrough digital innovation: Accelerated water, digital and AI solutions, including the Water Use Efficiency Index with CDP and Ecolab® Water Navigator IQ™.Positive community impact: Invested $24.2 million globally through the Ecolab Foundation to strengthen communities where Ecolab operates.Ecolab is built for this moment. By delivering strong performance while addressing the world’s most pressing resource challenges, the company is helping lead the next era of growth the right way. Explore Ecolab’s full 2025 Growth & Impact Report at: <a href="https://cts.businesswire.com/ct/CT?id=smartlink&amp;url=https%3A%2F%2Fwww.ecolab.com%2Fcorporate-responsibility%2Fgrowth-and-impact-report&amp;esheet=545

ST. PAUL, Minn.--(BUSINESS WIRE)-- The board of directors of Ecolab Inc. today declared a regular quarterly cash dividend of $0.73 per common share, to be paid July 15, 2026, to shareholders of record at the close of business on June 16, 2026. Ecolab has paid cash dividends on its common stock for 89 consecutive years. About Ecolab A trusted partner for millions of customers, Ecolab (NYSE:ECL) is a global leader in water, hygiene and infection prevention solutions and services that protect people and the resources vital to life. For more than a century, Ecolab has advanced innovation by integrating science-based solutions, data driven insights, AI technology and world-class service. This unique combination enables Ecolab to partner with customers to define what best-in-class looks like and scale it across their operations, helping them achieve peak performance. Today, Ecolab delivers $16 billion in annual sales, employs 48,000 associates and serves customers in more than 170 countries and 40 industries. The company helps protect one-third of the world’s food production and a quarter of the power generated while delivering innovative solutions across food, hospitality, healthcare, data centers, microelectronics and life sciences. As the world’s water company, Ecolab plays an important role in AI growth by supporting the full water needs of advanced computing—from ultra pure water for chip manufacturing, to water solutions that support the power behind AI, to direct liquid cooling systems for high density computing that improves performance while reducing environmental impact through circular water use. In life sciences, Ecolab delivers end to end solutions that support the development and manufacturing of life-saving drugs, helping customers operate safely and consistently at scale while improving performance and reducing environmental impact. Through its comprehensive approach, Ecolab protects what’s vital, with a goal by 2030 to help protect 2 billion people from infections and conserve enough drinking water for 1 billion people, while continuing to enhance business performance. Ecolab. Protecting What’s Vital. www.ecolab.com (ECL-D) Investor Contacts: Andrew C. Hedberg 651.250.2185 Andrew Pearson 651.250.3654 Source: Ecolab Inc.

ST. PAUL, Minn.--(BUSINESS WIRE)-- Ecolab will host a live webcast of its annual meeting of stockholders. As indicated in our proxy statement, the 2026 Annual Meeting of Stockholders will be a virtual-only meeting. Details for the public webcast are as follows: TIME: 9:30 a.m. Central Time DATE: Thursday, May 7, 2026 DURATION: Approximately 30 minutes LOCATION: www.virtualshareholdermeeting.com/ECL2026 ARCHIVE: A replay of the webcast will be available 24 hours after the end of the meeting To be admitted to the Annual Meeting at <a href="https://cts.businesswire.com/ct/CT?id=smartlink&amp;url=https%3A%2F%2Furldefense.com%2Fv3%2F__http%3A%2Fwww.virtualshareholdermeeting.com%2FECL2026__%3B%21%21Nkc5UzxO%21tjkd-Lm_lSjYIG6zi43B8MLjjBi3WGhmJc4rCOeeS